I bought a D-Link DWA-171 USB WIFI Adapter just today for my desktop PC running Windows 10 Pro. But it is not detecting the AC 5G WIFI SSID. My Router is broadcasting AC 5G in the channels 149, 153, 157, 161. But this D-Link DWA-171 USB WIFI Adapter does not detecting either of this channels. When I change my Router 5G AC broadcast channels to 36,40,44,48 it detect the 5G SSID and connect with it. But as all our devices support only AC 5G either of this 149, 153, 157, 161 channels for that we can't keep the setting to 36,40,44,48 channels. Please help me to connect in AC 5G with this D-Link DWA-171 USB WIFI Adapter in the following AC 5G either of this 149, 153, 157, 161 channels. Thanks in advance.

I believe there was a similar issue several years ago with this adapter (reported by D-Link India/middle east OBU) that had issues connecting to these channels. Not sure if it got resolved or what happened.

What hardware revision is the adapter?

What driver version?

If you can get (but do not report it here) the MAC address and the P/N number from the adapter. A D-Link tech may need that info.